---
# Enable the GUI for a confirmed maintenance wave without changing the boot default.
- name: Enable graphical maintenance session
  hosts: "{{ operation_wave | default('invalid-wave', true) }}"
  gather_facts: false
  become: true
  vars:
    approved_operation_waves: [lab, pilot_1, pilot_2, wave_1, wave_2, production]
    production_override: false
  pre_tasks:
    - name: Require confirmed approved operation wave scope
      ansible.builtin.assert:
        that:
          - operation_wave in approved_operation_waves
          - operation_confirmed | bool
          - operation_wave in groups
          - ansible_play_hosts_all | length > 0
          - ansible_play_hosts_all | difference(groups[operation_wave]) | length == 0
        fail_msg: "Set operation_wave to one inventory wave and operation_confirmed=true; full-fleet scope is refused."
      run_once: true

    - name: Require separate production override
      ansible.builtin.assert:
        that:
          - operation_wave != 'production' or production_override | bool
        fail_msg: "Production operation requires production_override=true in addition to operation_confirmed=true."
      run_once: true
  tasks:
    - name: Start GUI and wait for RDP
      ansible.builtin.command: /usr/local/bin/bf-gui-on
      register: gui_on
      changed_when: true

    - name: Verify terminal boot default remains configured
      ansible.builtin.command: systemctl get-default
      register: current_default_target
      changed_when: false
      failed_when: current_default_target.stdout != 'multi-user.target'